Formicoxenus hirticornis formidolosus (Wheeler, 1915) junior synonym of current valid taxon Formicoxenus hirticornis (Emery, 1895)
Leptothorax (Mychothorax) hirticornis var. formidolosus Wheeler, 1915b: 415 (w.q.) U.S.A. Nearctic.
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